SIIG’s USB-C Power Meter Tester with Digital Indicator enables you to monitor the charging performance of your USB-C devices. It measures the electrical current that is being received by your USB-C device and also indicates the voltage of the power source as well as the direction of the current while charging your USB-C devices such as laptops, tablets and smartphones. The clear bright display allows quick and accurate reading. Compact design makes this power meter a portable and convenient tool to monitor the charging performance of your USB-C devices at all times.